New Version - Fixed Pagination to match number of filtered products.

Filter functionality on Backend Product View. You can filter your products to a certain category you choose on dropdown menu.

Features:
On admin/catalog/products a new column called "category" is inserted.
For every product the availlable category is displayed.
You can filter products by category usind a dropdown selection which shows
all availlable categories.
If the filtered products used to display more than one site, pagination
is working and you can switch between sites to see all filtered products (on other
extensions the filter is reseted when you want to switch to second site).

If you like this extension, you can donate me a beer or something like that ;-)




- Original extension by Shawn Noh
- Pagination Added by Joel Rush, Additions by neocreo
- category column added and fixed pagination (undefined variable...) by ab-oc